Origins of 21st-century space travel : a history of NASA's Decadal Planning Team and the vision for space exploration, 1999-2004 / by Glen R. Asner, Stephen J. Garber.
Origins of 21st-century space travel : a history of NASA's Decadal Planning Team and the vision for space exploration, 1999-2004 / by Glen R. Asner, Stephen J. Garber.